Wire binding or tying apparatus



Feb. 16 1926.

E. A. INGOLD WIRE BINDING OR TYING APPARATUS Filed May 5, 1924 M roR.

3o the present invention 'is to enablebinding Patented Feb. 16, 1926.

..UNITED STATES i v ,"1,573,51a

to w- ERNEST ALBERrINGoLn, -oF Lennon; nnG Ani), ASSIGNQR ,ro' tmnssnsjw. ac. PANTYIN, or'tonnolv, ENGLAND. i

' wmn BINDING on rYINe APPAR Q 'Application filed May 5,1192%.serialit'o; 'f(11,'269.

T 0 all whom cit -may concern: H Be it known that I, ERNEST ALBERT "IN-COLD, a subject of the Kingof Great Britain, residing in -London,vEngland, have invented certain new and useful Improve: ments in WireBinding or Tying Apparatus, of which the following is a. specification.3 a i i v This invention relates to apparatus for binding or tyingwooden or other boxes,

' bales or the like with hoops of wire, the

ends of which are twisted together by causlng themto overlap andgrlpplng the overlap with a rotary twrsting device by means of which thetwo wires are twisted together on either side of the grip.

Such an apparatus is described by the present applicant in United StatesPate11t1N0.i1,486,396.

Hitherto one end of the wiregha-s been gripped fixedly by ineansofa pairof gripping jaws or clips so that the distance between that gripping.point and the adjacent twisting; pinion should there be more than onetwisting pinion was invariable during the twisting-operation. Asthispart of the wire tends to shorten owing to the twist imposed upon it,unless the wire used was of a comparatively. soft and extensiblematerial breakages ofthe'wire at this point were common, and theprincipal object of wires of hard and comparatively, inexten sible steelor iron to be used. Accordingly, by the present invention, the grippingaws or clips whereby the fixed end-of the WllO is secured are so mountedthat ata predetermined phase of the twistingoperation they permit thepoint of g'rip,fand

with it the wire, to move inwardly towards the twisting pinionsufliciently to avoid any tendency of the wire to'be broken.

1 According to the present invention the wire is gripped between anormally fixed clip and a pivoted clip preferably having an eccentricengaging edge which is also preferably serrated,- and when the wire isplaced in the correct position prior to twisting it is gripped byturning the pivoted clip about its pivot by hand. The other clip ismounted to slide outwardly away from the wire and its fellow clip, butis normally held up to its work by means of a stop which, at, apredetermined phase of the twisting operation, is displaced so as topermit the sliding clip to yield and there by permit the wire,and withit the pivbtej'd clip," to be drawn forwards towards {the twistingpinion. -'A blade spring operating upon the sliding "clip servestorestore it to its normal position. I j 1 'The invention is illustratedin the .ac-

companying drawings, wherein Figzl isfla.

No. 1,486,896, in which the overlapping parts of the loop of wire passedarounda package' are twisted together by meansvo'f two oppositelyrotating twistlng P11110118; F g.

2 is a section of the same .on line 22 of 7 Fig. 1; Fig. ,3 a section online 33 of Fig. 2; and Figs 4 and 5 aresectional plans on an enlargedscale of the gripping members in two different positions.

As shown in these drawings A represents that end of the wire which hashitherto been gripped 'fixedly by means'of a pair of gripping jaws,while B is the other end of the wirewhich, as hitherto,.is fixed ina-gripping device C which is movable longi- '-Accordingto the presentinventionthe end A of the wire isgripped between a normally fixed clip'Dand a pivoted clip tudinally. so, as to tension the loop of wire aroundthe package.

E, one or both of these beingpreferably provided with serrated edgeswhich, in the mounted upon it a bar I which normally rests upon apositioning stop J and 1s acted upon by a cam K carried by one of thedriving shafts K of the twisting pinions, and

the free end of this bar abuts against anadjustably secured to thearresting stop L frame. I.

The cam K comes into action at-a predetermined point of the twistingoperation to lift the bar I and thereby establish a clearance betweenthe end of thebar and the arresting stop L. This permits the lever II toturn upon its fulcrum and thereby, under the tension of the wire whichis being twisted, enables the slidably mounted clip D to be displacedoutwardly against the action of a suitable spring, as for example ablade spring F acting upon the rear end of the slide F. 7

Initially, i. e. before the twisting operation begins, the end A of thewire is clipped as shown in Fig. 4c and as, during twisting, that partof the wire between the clips I), E and the adjacent twisting piniontends to shorten, the pull upon the wire forces the clip D rearwards andat the same time turns the clip E upon its pivot E until finally theparts assume the position shown in Fig. 5.

As shown in Fig. 2, the lower side of the bar I is notched as indicatedat I so that the lift of the bar I will cease when the cam K comes intoregister with this notch. An auxiliary return spring I acting upon thepivoted bar I and tensioned by the lifting of the latter ensures the barbeing restored to its normal position against the positioning stop Jwhen the pivoted clip E is displaced manually or automatically torelease the cutoff end of the wire.

To allow for wires of different diameters to be used the pivoted clip E,or alternatively the normally fixed clip D, is so mounted that itsdistance from the wire and from its cooperating clip can be adjusted asdesired. As shown in the drawings the normally fixed clip D is slottedto permit of its longitudinal adjustment on the slide F, a grub-screwthrough the end of the latter determining the position of the clip withrespect to the slide and, in conjunction with the screws passing throughthe slot holes and screwed into the slide, holding the clip in position.

Having thus described the nature of the said invention and the bestmeans I know of carrying the same into practical eitect, I claim 1. Inan apparatus for twisting together the overlapping ends of a loop ofwire encircling a package, a gripping device for securing one end of thewire during the twisting operation comprising a pivotally movable clip,a transversely movable clip cooperating therewith to hold the wire, astop normally preventing transverse movement of the latter'clip, andmeans operating to withdraw the stop at a predetermined phase of thetwisting operation.

2.'An apparatus according to claim 1 said stop comprising a leverpivoted upon the apparatus frame, a bar pivoted upon said lever and anarresting stop secure-d upon the apparatus frame and cooperating withsaid bar to prevent movement of the pivot-ed lever.

3. In an apparatus for twisting together the overlapping ends of a loopof wire encircling a package, a gripping device for securing one end ofthe wire during the twisting operation comprising a pivotally movableclip, a transversely movable clip cooperatingtherewith to hold the wire,a stop comprising a lever pivoted upon the apparatus frame, a barpivoted upon said lever, an arresting stop secured upon the apparatusframe-cooperating with said bar to prevent movement of the pivoted leverand means for displacing said pivoted bar from engagement with saidarresting stop at a predetermined point in the twisting operation, saidmeans comprising a cam carried by one of the driving shafts.

l. In an apparatus for twisting together the overlapping ends of a loopof wire encircling a package, a gripping device for securing one end ofthe wire during the twisting operation comprising a pivotally movableclip, a transversely movable clip cooperating therewith to hold thewire, one of said clips being adjustably mounted so that its initialdistance from its cooperating clip can be varied, a stop normallypreventing movement of the transversely movable clip, and meansoperating to withdraw the stopv at a predetermined phase of the twistingoperation.

In testimony whereof I have signed my name to this specification.

ERNEST ALBERT INGOLD.

